Fountain or reservoir pen



A- E. WADE.

FOUNTAIN 0R RESERVOIR PEN.

APPLICATION FILED APR. 5. 1920.

Patented Aug. 9, 1921.

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ALICE EDNA WADE, OF ROCK FERRY, ENGLAND.

FOUNTAIN OR RESERVOIR PEN.

Specification of Letters Patent.

Patented Auw. 9, i921.

Application filed April 5, 1920. Serial No. 371,417.

To all @07mm t may concern:

Be it known that l, ALICE EDNA l/ADE, a subject of the King ot England, residing at 65 Cavendish Drive, Rock Ferry, in the county of Chester, England, have invented certain new and useful improvements in or Relating to Fountain or Reservoir Pens, of which the following` is a speciiication.

rl`his invention relates to fountain or reservoir pens ol the safety type, that is of the kind wherein a rod or bar which carries the writing nib is reciprocated within the pen body or barrel (for the purpose ot projecting or retracting the nib) by means oi a revoluble helically-slotted sleeve or tube, through the slot whereof a pin secured to said nib-carrying rod projects into a stationary guide or positioning slot, and my invention has for its object to increase the ink-holding capacity, reduce the cost oi manufact-ure, and facilitate the assembling together ot the pen components.

According to the present invention, the rear portion or section of the body is of lesser length than now customary, so that the helically slotted sleeve or tube projects beyond same, and t ere is provided a nipple connecting piece which is externally screwthreaded and is screwed into said rear section, that is, between the interior wall thereof and the helically slotted sleeve or tube, and on which the main body or barrel is screwed.

ln the interior wall ot said nipple connecting piece (which constitutes a housing or casing for said helically slotted sleeve or tube) there is formed or provided a longitudinal guide or positioning slot wherein the lateral projection oi the leed bar or stem engages.

l will further describe my invention with the aid of the accompanying sheet of eX- planatory drawings, in which Figure l is a longitudinal section of a safety pen (the nib being omitted) with housing showing interior parts of the pen in elevation; Figs. 2 and 8 being respectively, longitudinal and cross sections ot' interior parts viewed at right angles to Fig. l; and Fig. 4 is a detached view ot' the housing.

a denotes the main body or barrel of the pen, b is the rear end or section and c is a revoluble sleeve or tube whereinv is cut a helical slot nl; forming an extension of sleeve c is a shank e at the upper or outer end whereof is attached the head piece c indicates a joint makingsleeve or" cork or similar material atlording a bearing for the shaft e. g is a nib-carrying rod or bar to which is secured the lateral pin 7L.

e' represents a cylindrical piece or nipple in which is lormed a. longitudinal slot or recess j; said nipple is exteriorly screwthreaded at j and forms a connecting piece between the barrel a and the rear end or section b. Said nipple z' which is constructed ot vulcanite or other suitable material constitutes a housing or casing for the sleeve c.

Said lateral pin t of the nib-carrying rod f/ projects through helical slot Z oi revoluble sleeve c into the longitudinal guide slot of the stationary casing nipple e'.

ln operation, when said head-piece -f is turned, and with it the revoluble helicallyslotted sleeve or tube 0--, the nib-carrying rod or bar -gis projected or retracted through the engagement of' the lateral pin htwhich projects through the helical slot doi the sleeve --cin the longitudinal slot or recess -jof the cylindrical piece or nipple Having now described my invention what l claim as new and desire to secure by Letters Patent is Pt reservoir pen comprising a nipple having a longitudinal guide slot formed in the inner wall thereof; a screwthreaded portion formed on the exterior of said nipple; an ink barrel screwed on said nipple; a rear section screwed on said nipple against said ink barrel; a revoluble head-piece; a sleeve connected with said head-piece and housed in said nipple and having a helical slot lformed therein; a nib-carrying rod, and a lateral pin on said nib-carrying rod projecting;r through said sleeve slot and engaging in the longitudinal guide slot of said nipple.

ln testimony whereof l affix my signature in the presence of two witnesses.

ALICE EDNA WADE.

Witnesses:

Jas. C. MGRAE, EMILY BURNETT. 

